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Remove support for Qt < 4.2
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@21624 a592a061-630c-0410-9148-cb99ea01b6c8
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@ -21,61 +21,10 @@ namespace lyx {
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using std::string;
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#if QT_VERSION < 0x040200
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// We use QString::fromUcs4 in Qt 4.2 and higher
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QString const toqstr(docstring const & str)
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{
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QString s;
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int i = static_cast<int>(str.size());
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s.resize(i);
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for (; --i >= 0;) {
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char_type const c = str[i];
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if (is_utf16(c))
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// Use a simple cast in the common case for speed
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// reasons
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s[i] = static_cast<unsigned short>(c);
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else {
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// A simple cast is not possible, so we need to use
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// the full blown conversion.
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std::vector<unsigned short> const utf16 =
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ucs4_to_utf16(str.data(), str.size());
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// Enable the compiler to do NRVO
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s = QString::fromUtf16(&utf16[0], utf16.size());
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break;
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}
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}
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return s;
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}
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#endif
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docstring const qstring_to_ucs4(QString const & qstr)
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{
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#if QT_VERSION >= 0x040200
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QVector<uint> const ucs4 = qstr.toUcs4();
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return docstring(ucs4.begin(), ucs4.end());
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#else
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int const ls = qstr.size();
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docstring ucs4;
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for (int i = 0; i < ls; ++i) {
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char_type const c = static_cast<char_type>(qstr[i].unicode());
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if (is_utf16(c))
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// Use a simple cast in the common case for speed
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// reasons
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ucs4 += c;
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else {
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// A simple cast is not possible, so we need to use
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// the full blown conversion.
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std::vector<char_type> const v = utf16_to_ucs4(
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reinterpret_cast<unsigned short const *>(qstr.utf16()),
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qstr.size());
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// Enable the compiler to do NRVO
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ucs4 = docstring(v.begin(), v.end());
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break;
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}
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}
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return ucs4;
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#endif
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}
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@ -56,16 +56,12 @@ inline bool is_utf16(char_type c)
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* This is the preferred method of converting anything that possibly
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* contains non-ASCII stuff to QString.
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*/
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#if QT_VERSION >= 0x040200
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inline QString const toqstr(docstring const & ucs4)
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{
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// If possible we let qt do the work, since this version does not
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// need to be superfast.
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return QString::fromUcs4(reinterpret_cast<uint const *>(ucs4.data()), ucs4.length());
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}
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#else
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QString const toqstr(docstring const & ucs4);
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#endif
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/**
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